Improvement in wrenches



J. P. MITCHELL.

WRENCH.

No. 191,010. Patented May 22,1877.

N, PETERS. FHOTO-LITHDGRAPHER. WASHINGTON u 0.

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UNITED STATES PATENT OFFICE.

JOSEPH P. MITCHELL, OF NEW BEDFORD, MASSACHUSETTS.

IMPROVEMENT IN WRENCHES.

Specification forming part of Letters Patent No. l9l,0 10, dated May 22,1877; application filed June 15, 1875.

To all whom it may concern Be it known that I, JOSEPH P. MITCHELL, ofNew Bedford, county of Bristol and State of Massachusetts, have inventedcertain new and useful Improvements in Wrenches; and

, I do hereby declare that the following is a full, clear, and exactdescription of the same, reference being had to the accompanyingdrawings, forming a part of this specification, in which is representeda perspective view of my improved wrench.

The object of the present invention is to produce an adjustable wrench,which, when the nut has been removed from the bolt, will hold it in itssocket, and which may again be applied to the bolt without removing itfrom the socket; and the invention consists in the construction andarrangement of the several parts,'as will be hereinafter described andsubsequently pointed out in the claim.

In the accompanying drawings, A represents the shank or handle of thewrench, having formed upon its lower end a disk, B, and its upper endscrew-threads a. The handle A has secured to its upper end a stationaryjaw, O, and the two are so connected as to allow the free rotation of'the handle while the jaw remains stationary. The jaw O has a guiderod,b, projecting down from its under side,

and passing through a lower jaw, U, to guide it in its movement upon thescrew-threaded part of the handle A. These jaws are formed with angularrecesses c for the reception of the nut, and smaller angular recesses 01for a similar use. The disk B dispenses with the usual wooden handles,which require the lower end of the shank or handle to be screwthreadedand the necessity of a nut and washer to secure the wooden handle inplace. The simple disk obviates this and greatly cheapens the cost intheir manufacture.

Having now fully described my invention, what I claim as new, and desireto secure by Letters Patent, is-

As an improved article of manufacture, an adjustable wrench, consistingof the handle A, with disk B and screw-thread a, jaws G O, the latterbeing threaded and both having grasping-surfaces at each end, andprovided severally with recesses c d, and the rod b, connected to thejaw G and passing through the jaw O, substantially as and for thepurpose set forth.

JOSEPH P. MITCHELL.

